The graph below shows eye tests undertaken for both affected and unaffected Giant Schnauzers compared with the number of dogs (males and females) used for breeding. The red dotted trend lines shows that the number of affected dogs has remained constant between 0-3 cases per year since eye testing for HC was added to schedule A of the BVA/KC eye scheme. The graph also shows that, since 2008, the number of eye tests undertaken exceeds the number of dogs that have been bred from, indicating that the uptake for eye testing of breeding dogs is excellent.

Multifocal Retinal Dysplasia (MRD) Litter Screening

The graph below shows the number of litters screened for MRD showing both affected and unaffected litters compared with
the total number of litters registered. The number of litters containing affected puppies has decreased from 11 affected litters to
7 affected litters over the last 3 years. The graph also shows that in 2013 the number of litters tested is equal to the number of
litters registered indicating that uptake of litter screening was excellent.